Parent cases

[Redmt]

Is there a list somewhere of parent cases? I know a few,,,,
.223 to .300 BO (some)
.6.5 CM to 22-250
30-06 to .270 & 25-06

 

[golfer]

Is there a list somewhere of parent cases? I know a few,,,,
.223 to .300 BO (some)
.6.5 CM to 22-250
30-06 to .270 & 25-06

I thought the 6.5 cm was built off the 30 tc case.

Was the 22-250 built off the 250-3000 savage?

 

[TX Trophy Hunter]

I thought the 6.5 cm was built off the 30 tc case.

Was the 22-250 built off the 250-3000 savage?

You are correct

 

[TX Trophy Hunter]

308 for 243, 260, 7mm-08, 338 federal, 358 win

270 wby for 257 and 7mm wby

300 wby for 6.5-300 wby and 340 wby

30-06 has also created 280 rem, 338-06, and 35 whelen

338 win and 264 win were developed together on the same case and the uncommon 30-338 uses the same case

30-30 win necked up to 32 special

6.5 Creedmoor necked up is a 338 lapua magnum, based on anecdotal evidence of its killing power

 

[golfer]

270 wby for 257 and 7mm wby

375 H&H is the parent to those

 

[Redmt]

How about the .284 Winchester? Is there a case that they came from?

 

[Wind Gypsy]

Saums, wsms, RUMs, and 26/27/28/30/33 nosler all have 404 Jeffrey as the parent case or at least inspiration.

 

[Potsie]

How about the .284 Winchester? Is there a case that they came from?

Not that I know of. It was specially designed for the Win M88, but really was years and years ahead of its time.